Seed huller



Dec. 6, 192 7.

W. B. SPURR SEED HULLER Patented Dec. 6, 1927.

Arr

WILLIAM'B. serian, or soo'rtrsisnerr,'Ymaisinserm.. 4

/ enen HULLER.

' Application filed June 24, 1225. YSerial ANia-39,319.-

This invention relates to seed hullers and has particular reference tomeans for cleaning small seeds, such Vas alfalfa and sweet clover, oneVobject of the invention being the provision of a mechanism vwhich may bereadily transported from point to point and which may be set upin'connection with a grain separator so as to receive the seeds from theseparator and be driven from the latter. p p tion is to provide simplemeans whereby the progress of the seed through the'machine will beretarded so that the hulls will be efi'ectually separated therefrom. Theinvention is illustrated in the accompanying drawing andwill behereinafter fully set forth.

Inthe "drawing: Figure 1 is an end elevation of a seed huller embodyingmy invention, and

Fig. 2 is a vertical longitudinal section.

of the same showing it in operative relation to a portion ofa'grainseparator. p

In the drawing, the reference numeral l indicates a portion of athreshing machine or grain separator which is indicated conventionallyand is provided with a delivery spout 2 arranged ordinarily to deliverseed into a receptacle in which they are stor-ed until an opportunity ishad to discharge themk'into a cleaner. According to my invention, thereis provided a truck 3 of any convenient form which may be easily drawninto a position adjacent the deliveryl end of the grain separator 1, andupon this truck is mounted a frame 4 carrying the seed huller. In theupper portion of the frame 4A is mounted a casing 5 of a generalcylindrical form and on the upper side of this casing is a hopper 6adapted to be disposed immediately under thespout 2 of the vgrainseparator so that the seed will be delivered directly into the hopper.`Disposed concentrically within the casing 5 is a hulling cylinder 7cooperating with a concave 8 which forms the lower side of the casing 5aroundl the cylinder and iskpivotally, mounted, as indicated at 9. Uponthe side of the hopper 6 is a. bracket 10 in which is threaded anadjusting rod 11 attached to the concave'S so that by propermanipulation of the nut 12 upon the said rod the concave maybe setcloser to or farther from the hulling cylinder and the mechanism thusadjusted to the size ofthe seed delivered to the apparatus. The cylindershaft 13 is extended A. particular object of the inventhrough one sideof the casing 5 `-and from the vgrain separator through a belt 15 in anVobvious manner. y A checl; platefl -is secured within thehopper 6 andextends across the same `butvis inclined downwardly,

equipped with pulley 14 'receiving power as 'clearly shown in Fig. 2, sothat, while the ow of seedto the hulling cylinder-:will be retarded and-choking'of thecylinder will be avoided, the. seed may flow in acontinuous steady stream to Vthehulling cylinder.

Below the casing. is acasing 17, in. one vend of which is mountedy a fanor blower 18 which is driven from the shaft 13 through' suitable pulleysanda belt 19, as willbe i' readily understood. In the bottomv of. the

casing 17 is a discharge Vchute 20 Vwhereby the cleaned hulled seedv`may `be l deliveredl hulls and other waste matter, the seed d-roppingto the chute 20 and the hulls and impurities being driven. outthroughthe action Y of the fan blast. An exit or dischargeV opening 23 isprovided in the casing 5 insubstantial vertical alinement with thehopper 21, and this eXit may be closed by doors 24'and 25. The saiddoorsare hinged at their upper f Y edges to the casing 5 at thel upper sideof the'eXit andmay swingtowards'or from' 2 the threshing cylinder so asto entirely close the exit or partially uncover it to a desired degree.It will be noted that the door 24 is appreciably smaller than the door25. If the seed passing lthrough the machine is very fine, the 'door 25may be kept closed andthe door 24 .partially opened, the result beingthat. the seed will be caused to travel across the machine as well aspartially around the hulling cylinder between the latter andthe concave8 and, therefore,`the vseed will be retained within the casing 5 for aperiodl suflicient to permit all the hulls rto' be removed from theseed. Each'door isprovided with a bracket or slotted yarm 26v throughwhich a securingv ybolt 27 is passed that the door may be easily securedina set position, as will be understood.

into-an adjacenty portion of therframe 4 so isseparated from the strawin the threshing` y By the usev of-my machine, the seed .which l machineor the grain separator is delivered at once into the hopper 6 and flowsto the hulling' cylinder and between the same and the concave where itwill be acted upon by the teeth or projections of the cylinder and theconcave so that the hulls will be thoroughly split or broken and removedfrom the seed. The seed and the hullswill, of course, flow through theexit of the cylinder casing and pass through the hopper 21 onto *the.screen 22 where the hullswill be separated Afrom the seed, as beforestated. My

Y machine not-only saves the time which has l efficiently than hasbeenheretofore done,

heretofore been required to collect they seeds and then deliver thein toa seed-cleaning apparatus removed from the grain separator but alsooperates to reinove the hulls more 1H devices heretofore provided' forhulling seed, there was no means for preventing the seed flowing throughthe machine so rapidly that the-hulls would not be removed, but l haveovercome .this `objection by providing the doors 24 and 25 which can beset to very effectually retard the escape of the seed and, consequently,lwill hold the seed in the hull- Ving casing for a suflicient period topermit the hulling cylinder to act upon the entire body of seed andseparate the hulls therefrom. The apparatus is exceedingly simple andhas been found to operate in av highly eflicient manner. Y

Having thus described the invention, I claim: Y

ln an apparatus of the character described, a cylinder, a casing aroundthe upper and rear portions of said cylinder and having-1an inlet initsupper portion, a concave below said cylinder having its rear endspaced from said casing to provide an outlet in the lower rear portionthereof, a separator havingan upwardly extending inlet hopper disposedbeneath the outlet of said 'casing, doors for the outlet having theirupper edge portions hinged tothe lower rear edge portion of said casingand adapted to beswung rearwardly from a closed to an open positionabove said hopper and 'constitute detectors to direct seed into thehopper when open, and .means to releasabl'yfsecure said doors in anadjusted position. y

' In testimony whereof I aHiX my signature.

wiLLrAM B. sPURR. Sl] 'l

